南京大学学报（自然科学版）2021，Vol.57Issue(3)：512-524,13.DOI:10.13232/j.cnki.jnju.2021.03.020
新型磷化钴和硫化钴催化剂的制备及其在加氢精制反应中的活性
Preparation of new cobalt phosphide and sulfide catalysts for the hydrotreating reactions
摘要
Abstract
A 60％Co/Al2O3 catalyst was prepared by the co-precipitation method.It was then reduced by H2,sulfided by CS2 and phosphided by PPh3,respectively,to metallic Co,Co9S8 and cobalt phosphides(Co2P and CoP).It was found that the activities of these catalysts for the hydrodesulfurization(HDS)reactions followed the order of CoP/Al2O3＞Co2P/Al2O3＞Co9S8/Al2O3＞Co(metal)/Al2O3.In addition,the phases of CoP and Co9S8 were stable(did not change)during the HDS reactions,and CoP was significantly more active than Co9S8.On the other hand,Co2P could be converted into CoP and Co3S4 during the HDS reactions,and thus the Co2P/Al2O3 was less active than the CoP/Al2O3.The Co(metal)/Al2O3 could be sulfided when directly used for the HDS reactions with the formation of large particles of Co9S8(9 nm),which were significantly larger than those in the pre-sulfided Co9S8/Al2O3(5 nm).Thus the Co(metal)/Al2O3 was less active than the Co9S8/Al2O3 for the HDS reactions.关键词
Co/Al2O3催化剂/磷化/硫化/加氢精制反应Key words
Co/Al2O3 catalyst/phosphidation/sulfidation/hydrotreating reactions分类
化学化工引用本文复制引用
袁亚梅,陈慧,赵丹阳,吴驰,耿皎,沈俭一..新型磷化钴和硫化钴催化剂的制备及其在加氢精制反应中的活性[J].南京大学学报（自然科学版）,2021,57(3):512-524,13.基金项目
国家自然科学基金(21773108),中德合作研究项目(21761132006) （21773108）
